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Trop Anim Health Prod ; 53(2): 201, 2021 Mar 09.
Artigo em Inglês | MEDLINE | ID: mdl-33687567

RESUMO

This study aimed to evaluate the effects of different traditional or alternative energy and protein sources, associated or not, on feeding behavior, ruminal kinetics, and post-ruminal flow of nutrients. Besides, it was assessed diets' effects on different sites (reticulum and omasum) of buffaloes. Four ruminally cannulated male Murrah buffaloes (average initial weight of 637 ± 66.37 kg) were randomly distributed in a 4 × 4 Latin square design. Treatments were arranged as 2 × 2 factorial arrangement. The first factor evaluated was the inclusion of energy sources (ground corn and crude glycerin), and the second factor was the inclusion of protein sources (soybean meal and cottonseed cake). Buffaloes fed cottonseed cake had a higher content of neutral detergent fiber (NDF) and potentially digestible detergent fiber (pdNDF) in the rumen environment than buffaloes fed soybean meal. There was a sampling site effect on rumen digestion rates of pdNDF, passage rates of indigestible neutral detergent fiber (iNDF), and pdNDF, and flow of iNDF. In this study, omasal collections were more representative. Total replacement of ground corn by crude glycerin promoted less NDF ruminal digestibility, and care should be taken to include this energy source. The cottonseed cake does not cause a difference in rumen dynamics and can totally replace soybean meal in feedlot buffaloes' diet.


Assuntos
Fenômenos Fisiológicos da Nutrição Animal , Búfalos/metabolismo , Dieta/veterinária , Proteínas Alimentares/administração & dosagem , Omaso/química , Rúmen/metabolismo , Fenômenos Fisiológicos da Nutrição Animal/efeitos dos fármacos , Animais , Fibras na Dieta/metabolismo , Proteínas Alimentares/farmacologia , Digestão , Glicerol , Gossypium , Masculino , Omaso/efeitos dos fármacos , Omaso/metabolismo , Rúmen/química , Rúmen/efeitos dos fármacos , Proteínas de Soja , Zea mays
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